Consolidated Statement of Cash Flows (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Operating activities:
Cash provided by operating activities	$ 6,333	$ 9,579
Investing activities:
Capital expenditures for coal properties	(8,604)	(2,372)
Investment in Sunrise Energy		(506)
Increase in marketable securities	(1,215)	(1,269)
Other		130
Cash used in investing activities	(9,819)	(4,017)
Financing activities:
Payments to bank		(2,500)
Other		(23)
Cash used in financing activities		(2,523)
Increase (decrease) in cash and cash equivalents	(3,486)	3,039
Cash and cash equivalents, beginning of period	21,888	37,542
Cash and cash equivalents, end of period	$ 18,402	$ 40,581